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Test: Swift - Nil Coalescing Operator

5. var score: Int?, level=2; var totalScore = score ?? 50*level - What’s totalScore?



Results
Congratulations! Correct Answer.
You Answered: None. If you took the test, your answer will show up here.
Correct Answer: 100
Explanation
Variable score is nil. So, ?? will execute/return 50*level, which is 100.
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Question 5 of 5


Test is Based on this Article
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This article talks about the Nil Coalescing Operator (??) in Swift.
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Test on Nil Coalescing Operator for Optionals.

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